Pikridiniem sulfo cobipounds



Patented Jan. 9, 1 951 UNITED PATENT OFFICE: f

rnmnmrnm. sULFo COMPOUNDS Marius Seon, Montreuil-sous-Bois, andflsidore ,R n, Par s F a a o s t com a' nic de' Produits Qliimiques ctlilectromtallurgiques, Alais,-Frogeset' 'Ca-marg-ue; Paris, France, a so No Drawing. npplicationigctober .6, 1947, Serial No 778,364. France January13, I947 The present invention is concerned with new organic compounds and with a method for.

preparing the same;

As well known, the quaternary salts of ammonium obtainedby combining alkyl halideswith tertiary heterocyclic amines are endowed with emulsifying properties and are adapted toserve .as dispersive agents.

we have found that excellent emulsifierspertaining to the .class of pyridinium salts'may be obtained by reacting in an anhydrous medium, a sulphochloride having the structure ,RSO'zCl with analcohol or a phenol in the presence of a tertiary heterocyclic amine (such aspyridine and .the homologs thereof taken alone or various mix- "tures thereof) in rated proportions.

In an anhydrous medium, a compound of a new type .is formed'which is quite different" from 'sulfonic acid or itssalts as obtainedby hydrolysis the. presence of heterocyclic amines in ,an agueous medium accordingitothe reaction:

wherein ZN denotes the radical of a vtertiary heterocyclic amine, and R and R "denote lmo a n h r c b adi al This is quite unexpected since the .iormation of an ester of the structure RSO2"OR;" could have been expected as a result of a reaction similar to the one usually observed when reacting"sulphochlorides with an alcohol in the presence of alkaline compounds hydroxides or carbonates of a kali and earth-alkali metals).

In particular, in theiabovie reaction aliphatic' alcohols may be used such as methyl alcohol, the straight-. chained and branched-chained primary homologs thereof a and phenol and its homologs; however the invention is not restricted to the use of the above compounds and such compounds as the glycols, the cyclo aliphatic alcohols, cyclo-hexanol and the like may also be vused.

The reaction may be efiect'ed with or without the use of pressure, at temperatures within the range of from 10 to 230;C-hand both-in Qthe presence and in the absence of catalystsand/or dehydrating agents. It may be desirable to use an excess of alcohol. 7

In certain cases it may be desirable to operate 2 within a neutral solvent medium serving as an anhydrous diluting medium and making for perfect homogeneousness of the reactive medium.

Upon completion of the reaction, the nonreacted' fraction of the alcohol may be distilled 01? under vacuumor'the non-reacted 'phenol may be. removed by a suitable extraction step.

With a View to establishing the structure of the compound, another synthesis was performed 10 and the two products obtained were found identical. H a The molecular structureappears clearlyfrom the sequence of reactions that takes place when a sulDhQchloride is oaused to react upon a calcu- -l5' lat'ed. amount of a tertiary heterocyclic' amine; in ananhydrousmedium; in such manner as to form first'the' sulph'opyridinium chloride, the formula .of whichis:

(exactlyas analogous compounds are formedn in an anhydrous medium with aliphatic .aicohol halidesaand tertiary heterocyclic amines), and this chlorideyis caused to react with an alkaline alcoholataintroduced in calculated amount, the

alkaline chloride that is formed being eliminated v by f ltrationand thesolvent being evaporated:

c1 v QR The new mpounds Obta n d ihrpu abat indicated reactions possess remarl zable emulsifyv ing,. properti es. They are particularly adapted to the emulsifying of chlorinated naphthalenes as well as of products which are not soluble in water and have a greater specific gravity than water such as chlorobenzene. The emulsions thus obtained are particularly advantageous for us c-as agriculturalv insecticides and acarieides.

. sfuchnornpounds are appropriate foremulsify- :i-n -eertain minerm oils and may be utilized'p'ar- 451; ularly for the production of lubricating -;agencies for ,cutting tools.

Good results may be obtained with the follow- -v{ing; -formula( in parts by weight) Emulsifier 10 Water 20 Paraffin oil water to that mother emulsion are in the form of a permanent white milk.

Said new compounds may also be used as detergents in theicleaning of animal fibres and in particular crude. wool.

Theproducts obtained from paraffin sulphochlorides are particularly interesting although other starting material derived from natural petroleum (such as gas oil) or hydrocarbons obtained through hydrogenation of coal or Fischer synthesis and suitably sulphochlorided may be containing groups.

Example 1 100 parts of a paraflin sulpho-chloride (melting point 52. 0., average molecular weight 360) containing 8.5% sulphur and 10.5% chlorine, dissolved in 601 parts of dichlorethane are placed in reactive contact with 25 parts of anhydrous methyl alcohol. slowly and .with stirring. The temperature is maintained at about 60 C. for one hour. The solvent and the non-reacted reactants are distilled ofi preferably under, reduced pressure. An oily, yellow, water-soluble product is obtained which possesses surface-tension active properties which are common to the majority of sulphochloride derivatives but which is in this case distinguished by the particular ease with which a water solution thereof is capable of maintaining in suspension the finely subdivided particles of chlorinated naphthalenes. The stability of such emulsions is great enough to enable their shipment, storage and use.

Example 2 100 g. of sulpho-chloride of paraffin containing 9.5% of hydrolysable chlorine are dissolved in 100 cc. of dichlorethane. 21 g. of pyridine are added dropwise, the temperature being maintained at 3540 C. during the addition.

After th reaction is completed sodium propylate is added, said sodium propylate being obtained by adding 6.2 g. of metallic sodium to an excess of propyl alcohol.

The precipated sodium chloride is filtered off. The organic solvents are removed by evaporation. The resulting product is an excellent emulsifier for chlorinated naphthalenes.

What we claim is:

1. A chemical compound corresponding to the formula:

wherein ZN denotes the radical of a tertiary heterocyclic amine selected from the group consisting of pyridine and its homologs, and. R denotes a monovalent hydrocarbon radical corresponding to paraffin, and R" denotes a monovalent hydrocarbon radical.

2. A chemical compound corresponding tothe formula:

22 parts of pyridine are added wherein R denotes a monovalent hydrocarbon radical corresponding to paraffin, and R" denotes a monovalent hydrocarbon radical.

3. A method for preparing a new chemical compound as defined in claim 1, which comprises reacting a tertiary heterocyclic amine selected from the group consisting of pyridine and its homologs, a sulpho-chloride of parafiin and a hydroxy derivative R"OH, wherein R. denotes a monovalent hydrocarbon radical in an anhydrous medium.

, 4.-A method for preparing a new chemical compound as defined in claim 1, which comprises reacting pyridine, a sulphochloride of paralfin, and an alcohol ROH wherein R denotes a monovalent hydrocarbon radical in an anhydrous medium.

5. A method for preparing a new chemical compound as defined in claim 1, which comprises reacting pyridine, a sulphochloride of paraffin, and a phenol in an anhydrous medium.

6. A method according to claim 3, which comprises reacting the tertiary heterocyclic amine with a theoretical amount of the sulphochloride and an excess of the hydroxy derivative.

7. A method for preparing a new chemical compound as defined in claim 1, which comprises in a first step, reacting a tertiary heterocyclic amine selected from the group consisting of pyridine and its homologs with a sulphochloride of paraflinin an anhydrous medium, and in a second step reacting the product of the first reaction with an alkali-metal alcoholate ROM, wherein R. denotes a monovalent hydrocarbon radical, and M denotes an alkali metal.

8. A method for preparing a new chemical compound as defined in claim 1, which comprises in a first step, reacting pyridine with a sulphochloride of parafiin, to provide sulpho-pyridinium chloride, and in asecond step reacting said sulphopyridinium chloride with an alkali-metal alcoholateROM, wherein R" denotes a monovalent hydrocarbon radical, and M denotes an alkali metal.

9. A method for preparing a new chemical compound as defined in claim 1, which comprises reacting pyridine with a'sulphochloride of paraflin and anhydrous methyl alcohol.

10. A method for preparing a new chemical compound as defined in claim 1, which comprises in a first step, reacting pyridine with a sulphochloride of paraffin, and in a second step reacting the product obtained in the first step with sodium-propylate.

MARIUS sEoN. ISIDORE RAITZYN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,757,441 Pungs May 6, 1930 2,104,728 Bertsch Jan. 11, 1938 2,130,668 Gunther Sept. 20, 1938 2,140,519 Elston Dec. 20, 1938 2,172,606 Butler Sept. 12, 1939 2,299,782 Allen et a1. Oct. 27, 1942 2,308,427 Roehner et al Jan. 12, 1943 2,412,117 Baker Dec. 3, 1946 

1. A CHEMICAL COMPOUND CORRESPONDING TO THE FORMULA: 